CVE-2026-26984: high-severity vulnerability in aces Loris
LORIS media module vulnerable to remote code execution
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.8%
LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. Prior to versions 26.0.5, 27.0.2, and 28.0.0, an authenticated user with sufficient privileges can exploit a path traversal vulnerability to upload a malicious file to an arbitrary location on the server. Once uploaded, the file can be used to achieve remote code execution (RCE). An attacker must be authenticated and have the appropriate permissions to exploit this issue. If the server is configured as read-only, remote code execution (RCE) is not possible; however, the malicious file upload may still be achievable. This problem is fixed in LORIS v26.0.5 and above, v27.0.2 and above, and v28.0.0 and above. As a workaround, LORIS administrators can disable the media module if it is not being used.
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Affected products
aces · LorisRelated CVEs — aces Loris
In the same product, most dangerous first.
CVE-2026-26985HIGHLORIS vulnerable to path traversal in electrophysiology_browserEPSS 0.4%CVE-2026-34392HIGHLORIS has a path traversal in static routerEPSS 0.3%CVE-2026-33350HIGHLORIS has a SQL injection in MRI feedback popupEPSS 0.2%CVE-2026-35446HIGHLORIS has a path traversal in FilesDownloadHandlerEPSS 0.2%CVE-2026-34985MEDIUMLORIS has incorrect access checks in media moduleEPSS 0.2%CVE-2026-55147MEDIUMLORIS has incorrect access checks in API for Imaging BrowserEPSS 0.2%